Ring for spinning-machines



(N0 fiodel.

C. H. CHAPMAN.

RING FOR SPINNING MACHINES. I No. 501,243. 4 Patented July 11, 1893.

1&4 v 1794 UNTTED STATES PATENT @FFIQE.

CHARLES H. CHAPMAN, OF GROTON, MASSACHUSETTS.

RING FOR SPINNING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 501,243, dated July11,1893.

Application filed March 2'7, 1893. Serial 110.467 ,859. (N0 model.)

To aZZ whom it may concern:

Be it known that 1, CHARLES H. CHAPMAN, a citizen of the United States,residing at Groton, in the county of Middlesex and State ofMassachusetts, have invented a certain new and useful Improvement inRings for Spinning-Machines, of which the following is a full, clear,and exact description.

This invention relates to that class of spinning apparatusknown asring-spinningframes or machines.

One object of the invention is to equalize the tension on the yarn; andanother object is to simplify'the construction, and increase thedurability of the ring. In effecting these objects of my invention, Imake use ofaring having a tapering or wedge-shaped race constructed insuch manner as to allow the traveler to wedge itself upon the raceautomatically as the tension of the yarn or the centrifugal forcepredominates, substantially as 1 will proceed now to describe andfinally claim.

In the accompanying drawings illustrating my invention, in the severalfigures of which like parts are similarly designated, Figure l is a planview, and Fig. 2 is a vertical section of the ring. Fig. 3 is a planview of the under side of the ring. Fig. 4 is a plan view of the ringand traveler spinning upon a bobbin filled with yarn. Fig. 5 isa planview of the ring and traveler spinning upon an empty bobbin. fied formof ring, and Fig. 7 is a vertical section of the double ring-race nowingeneral use.

In practicing my invention, it will be understood that as in otherring-spinning frames my ring must be of the right size and the travelerof the proper Weight to correspond with the number of the yarn and thedesired speed.

In constructing my ring a, I provide forits fastening to the ring-railby means of the notched projections I), through which screws, such asare commonly used, pass to secure the ringto the ring-rail, andthesenotches are made larger than the screw-shanks in order to admit ofadjustment to as perfect concentricity of the ring and spindle as maybe.

Should it be found in practice that clearance for dust or lint isnecessary, a portion of the lower edge of the ring which comes incontact with the ring-rail, may be cut away as Fig. 6 is a sideelevation of a modi-' shown at c in Fig. 6, the projections 12 onlycoming in con tact with the ring-rail and thereby leaving an openingbetween the ring and the ring-rail.

The ring is constructed with the internal flange 01, which is surroundedby the ringrace ef Fig. 2. This race is constructed ofwedge-shape,increasing in thickness as it increases in diameter, itsupper side being substantially horizontal, as shown in Fig. 2. Thetraveler g is sprung over the flange d, which prevents the traveler frombeing disengaged from the ring. The thread t passes through the travelerg to the bobbin or yarn upon which it is being wound and the traveler bycentrifugal forceis thrown outwardly from .its

center of revolution, which is practically the a center of the spindle suntilthe feet g, g, of the traveler come in contact with the wedgeshapedrace ef. The bow of the traveler is not intended to touch the flange 01when the traveler is in operation. Should the thread break it is readilyengaged with the traveler by pressing the thread against the travelerwhich will force the traveler against the flange 01 causing the travelerto rise and the thread t will slip under the foot of the traveler intoplace as shown in Fig. 2.

With a ring and traveler of the common form as shown in Fig. 7, only onefoot of the travelerA comes in contact with the ring-race B, when thetraveler is in operation, unless too great a tension is created by thetraveler being too heavy or by some imperfection in the ring, either ofwhich will sometimes cause .the traveler-bow to run against the flangewhich will soon cut the traveler in two. In this form of spinning ring,the wearing surface of the traveler upon the ring-race B, is a mere lineof the width of the foot of such traveler, whereas in my ring it is atleast equal a great advantage in its durability over any now in use.Then the traveler is first put on, it will clasp the ring-race at theinside edge of the wearing surface shown in Fig. 5, and as the travelerruns, its feet will wear and the centrifugal force will throw thetraveler outwardly from its center of revolution and the traveler willgradually seek a new point of contact upon the ring-race therebyutilizing abearing surface equal to that shown in Fig. 5. When the yarnis being spun and wound upon the empty bobbin, the pull of the yarn isin aline as shown in Fig. 5, and when in this position the pull of theyarn is sufficient to overcome a portion of the centrifugal force andthe traveler is not forced upon the wedge-shaped ring-race so tightly.As the bobbin fills with yarn, the pull of the thread gradually changesto a point more in line with the course of the traveler in itsrevolution, and when the bobbin is filled with yarn, as shown in Fig. 4,the pull of the yarn t, is nearly in line with the course of thetraveler and at this angle there is practically no resistance inopposition to the centrifugal force 011 the traveler. The.traveler,therefore, at this point, is thrown out upon the wedgeshaped ring-racewith sufficient force to cause the traveler to wedge upon the ring-racemore tightly thereby increasing the tension of the thread andoff-setting in a great measure the variation of tension which existswith the ordinary ring and traveler.

By reference to Fig. 2, it will be noticed that the ring-race and flangecl are elevated sufficiently to prevent the travelerfrom coming incontact with the ring-rail.

What I claim is- 1. A spinning ring having a wedge-shaped race and aflange to restrain the inward movement of the traveler, substantially asdescribed.

2. A spinning ring having a wedge-shaped race, and a flange at its inneredge arranged in a plane substantially at right angles thereto,substantially as described.

3. A spinning ring having a flange and a wedge-shaped race and providedwith means for securing the same to the ring-rail, substantially asdescribed.

4. A spinning ring having a wedge-shaped race provided with an internalflange, in combination with a traveler which will tighten or loosen uponsaid race automatically as the centrifugal force or the tension of thethread may predominate, substantially as described.

5. A spinning ring having an elevated vertical flange surrounded by awedge-shaped race, combined with means for adjustably attaching the ringto the ring-rail, substantially as described.

6. A spinning ring havinga flange, a wedgeshaped race, means to securethe same to the ring rail, and an opening between the lower edge of thering and the adjacent surface of the ring rail when applied thereto, forclearance of lint, dust, &c., substantially as described.

In testimony whereof I have hereunto set my hand this 24th day of March,A. D. 1893.

CHARLES H. CHAPMAN.

\Vitnesses:

WARREN l-I. A'rwoon, D. CHESTER PARSONS.

